我对roid行动和制片有一些问题。 我有3个碎片,每选定3个碎片时,我将在行为区展示菜单。
如何做到这一点?
我试图在时间上提到纽芬兰语,并给人以真实的可见度,但似乎是无效的。
您应研究碎片法。 HasOptionsMenu(boolean hasMenu)。 这样,每个支离破碎者都能管理自己的菜单,该系统将注意根据这一价值隐藏/掌握行动物品。 在你的情况下,似乎你会把这归咎于你第一和第二个碎片,而第三个碎片会穿透,从而打上CreateOptionsMenu方法。
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